EveryQuake

Earthquakes in Ibaraki Prefecture

3,887 earthquakes catalogued in and around Ibaraki Prefecture between 1900 and 2026. Recorded measurements; not a forecast.

Last updated 4 August 2026 · merged from 5 catalogues
3.7
Latest earthquake · depth 10 km
31.07.2026 09:10 UTC · from centre 61 km
3,887
recorded earthquakes
M7.9
largest
1900–2026
record span
4.43
mean magnitude
1,637
epicentre inside the border

By year

Stacked by magnitude; one column per year.

03567121900: 1 (M5+)19001908: 1 (M5+)1909: 4 (M5+)19101916: 1 (M5+)1919: 1 (M5+)1920: 1 (M5+)19201921: 2 (M5+)1922: 2 (M5+)1923: 10 (M5+)1924: 7 (M5+)1925: 1 (M5+)1926: 2 (M5+)1927: 3 (M5+)1928: 3 (M5+)1929: 5 (M5+)1930: 6 (M5+)19301931: 8 (M5+)1932: 1 (M5+)1933: 1 (M5+)1934: 1 (M5+)1935: 2 (M5+)1937: 2 (M5+)1938: 15 (M5+)1939: 1 (M5+)1940: 3 (M5+)19401941: 3 (M5+)1942: 1 (M5+)1943: 4 (M5+)1945: 1 (M5+)1946: 2 (M5+)1947: 1 (M5+)1948: 3 (M5+)1949: 3 (M5+)1950: 2 (M5+)19501951: 2 (M5+)1952: 1 (M5+)1953: 1 (M5+)1954: 2 (M5+)1955: 2 (M5+)1956: 3 (M5+)1958: 3 (M4–5)1958: 3 (M5+)1959: 1 (M4–5)1959: 3 (M5+)1960: 1 (M5+)19601961: 7 (M4–5)1961: 5 (M5+)1962: 7 (M4–5)1962: 1 (M5+)1963: 4 (M4–5)1963: 3 (M5+)1964: 22 (M4–5)1964: 6 (M5+)1965: 1 (M3–4)1965: 15 (M4–5)1965: 10 (M5+)1966: 23 (M4–5)1966: 6 (M5+)1967: 25 (M4–5)1967: 5 (M5+)1968: 21 (M4–5)1968: 3 (M5+)1969: 15 (M4–5)1969: 2 (M5+)1970: 8 (M4–5)1970: 3 (M5+)19701971: 12 (M4–5)1971: 7 (M5+)1972: 13 (M4–5)1972: 4 (M5+)1973: 10 (M3–4)1973: 24 (M4–5)1973: 6 (M5+)1974: 4 (M3–4)1974: 21 (M4–5)1974: 4 (M5+)1975: 3 (M3–4)1975: 21 (M4–5)1975: 7 (M5+)1976: 3 (M3–4)1976: 15 (M4–5)1976: 2 (M5+)1977: 14 (M4–5)1977: 9 (M5+)1978: 1 (M3–4)1978: 26 (M4–5)1978: 3 (M5+)1979: 3 (M3–4)1979: 16 (M4–5)1979: 5 (M5+)1980: 2 (M3–4)1980: 22 (M4–5)1980: 7 (M5+)19801981: 3 (M3–4)1981: 21 (M4–5)1981: 5 (M5+)1982: 1 (M3–4)1982: 36 (M4–5)1982: 11 (M5+)1983: 3 (M3–4)1983: 31 (M4–5)1983: 14 (M5+)1984: 27 (M4–5)1984: 10 (M5+)1985: 2 (M3–4)1985: 33 (M4–5)1985: 7 (M5+)1986: 1 (M3–4)1986: 25 (M4–5)1986: 7 (M5+)1987: 28 (M4–5)1987: 14 (M5+)1988: 2 (M3–4)1988: 19 (M4–5)1988: 4 (M5+)1989: 13 (M3–4)1989: 25 (M4–5)1989: 11 (M5+)1990: 21 (M4–5)1990: 11 (M5+)19901991: 24 (M4–5)1991: 5 (M5+)1992: 1 (M3–4)1992: 34 (M4–5)1992: 6 (M5+)1993: 11 (M4–5)1993: 2 (M5+)1994: 1 (M3–4)1994: 23 (M4–5)1994: 4 (M5+)1995: 1 (M3–4)1995: 35 (M4–5)1995: 2 (M5+)1996: 8 (M3–4)1996: 26 (M4–5)1996: 3 (M5+)1997: 4 (M3–4)1997: 21 (M4–5)1997: 5 (M5+)1998: 6 (M3–4)1998: 28 (M4–5)1998: 7 (M5+)1999: 6 (M3–4)1999: 15 (M4–5)1999: 6 (M5+)2000: 3 (M3–4)2000: 34 (M4–5)2000: 5 (M5+)20002001: 4 (M3–4)2001: 32 (M4–5)2001: 5 (M5+)2002: 6 (M3–4)2002: 19 (M4–5)2002: 4 (M5+)2003: 8 (M<3)2003: 3 (M3–4)2003: 30 (M4–5)2003: 9 (M5+)2004: 4 (M<3)2004: 8 (M3–4)2004: 33 (M4–5)2004: 10 (M5+)2005: 3 (M<3)2005: 7 (M3–4)2005: 59 (M4–5)2005: 10 (M5+)2006: 1 (M<3)2006: 16 (M3–4)2006: 38 (M4–5)2006: 4 (M5+)2007: 2 (M<3)2007: 15 (M3–4)2007: 39 (M4–5)2007: 4 (M5+)2008: 2 (M<3)2008: 13 (M3–4)2008: 48 (M4–5)2008: 10 (M5+)2009: 2 (M3–4)2009: 23 (M4–5)2009: 4 (M5+)2010: 5 (M3–4)2010: 26 (M4–5)2010: 3 (M5+)20102011: 51 (M3–4)2011: 546 (M4–5)2011: 115 (M5+)2012: 10 (M3–4)2012: 114 (M4–5)2012: 28 (M5+)2013: 7 (M3–4)2013: 72 (M4–5)2013: 17 (M5+)2014: 11 (M3–4)2014: 76 (M4–5)2014: 5 (M5+)2015: 10 (M3–4)2015: 54 (M4–5)2015: 8 (M5+)2016: 6 (M3–4)2016: 69 (M4–5)2016: 15 (M5+)2017: 13 (M3–4)2017: 58 (M4–5)2017: 8 (M5+)2018: 19 (M3–4)2018: 39 (M4–5)2018: 10 (M5+)2019: 20 (M3–4)2019: 41 (M4–5)2019: 2 (M5+)2020: 43 (M3–4)2020: 46 (M4–5)2020: 11 (M5+)20202021: 35 (M3–4)2021: 44 (M4–5)2021: 5 (M5+)2022: 37 (M3–4)2022: 58 (M4–5)2022: 8 (M5+)2023: 49 (M3–4)2023: 53 (M4–5)2023: 3 (M5+)2024: 28 (M3–4)2024: 50 (M4–5)2024: 7 (M5+)2025: 61 (M3–4)2025: 47 (M4–5)2026: 53 (M3–4)2026: 21 (M4–5)2026: 2 (M5+)2026
M<3M3–4M4–5M5+

Read this chart carefully. Rising columns do not mean earthquakes are becoming more frequent. The monitoring network improved over time: the smallest detectable earthquake in Türkiye was about M5.0 in 1966 and is M1.5 today. Earlier years look quiet because small events were not heard, not because they did not happen.

Largest earthquakes

Inclusion rule: the radius widens with magnitude (15 km up to M4, 150 km at M7 and above). This is not a measure of felt shaking or intensity.

MagnitudeDateDepthDistance
7.905.11.1938 08:4335 km179 km
7.901.09.1923 02:5815 km134 km
7.911.03.2011 06:1525.4 km75 km
7.805.11.1938 10:5035 km199 km
7.710.11.1930 13:3530 km103 km
7.723.05.1938 07:1815 km113 km
7.706.11.1938 08:5330 km218 km
7.602.09.1923 02:4615 km150 km
7.316.03.2022 14:3649.6 km198 km
7.315.01.1908 12:5635 km176 km
7.301.09.1923 03:0335 km153 km
7.216.01.1961 07:2030 km137 km
7.206.11.1938 21:3825 km209 km
7.211.03.1945 21:3750 km173 km
7.222.01.1959 05:1035 km226 km

Latest earthquakes

MagnitudeDateDepthDistance
3.731.07.2026 09:1010 km61 km
3.631.07.2026 02:40100 km23 km
3.126.07.2026 14:4510 km61 km
4.417.07.2026 19:4547 km100 km
3.016.07.2026 16:1050 km41 km
3.816.07.2026 00:0143.1 km81 km
3.013.07.2026 06:3250 km77 km
3.008.07.2026 04:2550 km71 km
4.302.07.2026 07:1752.2 km75 km
3.301.07.2026 01:2290 km30 km
3.430.06.2026 15:3360 km27 km
3.228.06.2026 15:1950 km34 km
3.328.06.2026 14:3450 km73 km
3.226.06.2026 19:3050 km27 km
4.226.06.2026 18:5974.2 km72 km
4.526.06.2026 04:3131.3 km70 km
3.526.06.2026 04:2250 km77 km
3.126.06.2026 03:5250 km77 km
5.826.06.2026 03:4652 km77 km
3.926.06.2026 02:4849.8 km49 km
3.120.06.2026 19:5750 km48 km
3.216.06.2026 20:0670 km23 km
3.016.06.2026 12:5050 km41 km
4.416.06.2026 10:5542.4 km50 km
5.416.06.2026 10:4652 km52 km
3.101.06.2026 17:0250 km44 km
4.301.06.2026 15:5153.2 km86 km
3.131.05.2026 18:1080 km48 km
3.329.05.2026 16:1540 km68 km
4.024.05.2026 06:080 km54 km
4.122.05.2026 12:39102.4 km15 km
3.520.05.2026 15:2330 km97 km
3.314.05.2026 23:2330 km58 km
4.412.05.2026 00:0234.3 km49 km
4.407.05.2026 18:5090.7 km27 km
3.027.04.2026 14:2430 km58 km
4.123.04.2026 14:5370.8 km77 km
3.422.04.2026 19:3210 km43 km
3.217.04.2026 05:0540 km69 km
3.017.04.2026 04:3850 km85 km
3.106.04.2026 19:4360 km37 km
4.005.04.2026 23:17138.6 km108 km
3.605.04.2026 15:2450 km27 km
3.805.04.2026 07:3450 km20 km
3.104.04.2026 05:2970 km70 km
3.401.04.2026 16:2860 km56 km
4.901.04.2026 01:0664.3 km48 km
3.623.03.2026 06:1070 km75 km
3.218.03.2026 17:2150 km73 km
4.515.03.2026 05:0688.6 km81 km
3.312.03.2026 11:0950 km65 km
3.225.02.2026 20:2450 km41 km
3.125.02.2026 07:4950 km41 km
3.022.02.2026 18:1460 km29 km
3.021.02.2026 04:0310 km43 km
3.715.02.2026 15:49110 km33 km
3.715.02.2026 02:5247.1 km46 km
3.309.02.2026 15:0870 km82 km
4.309.02.2026 12:27104.2 km74 km
3.607.02.2026 23:4850 km57 km

Method and sources

What this page counts
An earthquake appears here when its epicentre is within a magnitude-dependent distance of this place's border: 15 km up to M4, 30 km to M5, 60 km to M6, 100 km to M7, and 150 km at M7 and above. The rule exists because a large earthquake concerns neighbouring provinces too — the 17 August 1999 epicentre was in the Gulf of İzmit, on no province's land at all.
Location precision
Epicentre uncertainty is typically 1–10 km, and larger for older records. That is why this site breaks data down to districts but not to neighbourhoods or villages — the data does not support that distinction.
Magnitude scales
The catalogues use more than twelve magnitude scales (Mw, ML, mb, Md…) and they are not equivalent. Values are shown on the scale the source reported; they are not converted.
Deduplication
The same earthquake is published by several catalogues. Records within 20 seconds and 100 km whose magnitudes differ by no more than 1.2 are treated as one event; the primary record is chosen by catalogue priority.
Updates
Recent earthquakes are fetched from four sources every five minutes. The historical archive is rebuilt infrequently.
Sources
USGS ComCat · ISC Bulletin · AFAD · Kandilli / KOERI · EMSC/CSEM
Reporting an error
If you spot a wrong record, write to us; we verify against the source and correct it.